25 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 12901 | Plattsburgh | 32,012 |
| 12972 | Peru | 7,063 |
| 12962 | Morrisonville | 5,131 |
| 12992 | West Chazy | 4,129 |
| 12929 | Dannemora | 2,882 |
| 12919 | Champlain | 2,789 |
| 12921 | Chazy | 2,771 |
| 12918 | Cadyville | 2,762 |
| 12979 | Rouses Point | 2,542 |
| 12981 | Saranac | 2,233 |
| 12910 | Altona | 1,994 |
| 12912 | Au Sable Forks | 1,860 |
| 12959 | Mooers Forks | 1,790 |
| 12903 | Plattsburgh | 1,740 |
| 12958 | Mooers | 1,650 |
| 12935 | Ellenburg Depot | 1,159 |
| 12934 | Ellenburg Center | 1,147 |
| 12985 | Schuyler Falls | 775 |
| 12955 | Lyon Mountain | 494 |
| 12923 | Churubusco | 463 |
| 12978 | Redford | 243 |
| 12924 | Keeseville | 230 |
| 12952 | Lyon Mountain | 226 |
| 12911 | Keeseville | 44 |
| 12933 | Ellenburg | 7 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 25 ZCTAs in Clinton County, New York (US Census).